The secret to lasting love | Eli J Finkel

Lasting love, Eli Finkel argues, is shaped not only by who two people are when they meet but by the private world they build together. He calls the recurring experiences and meanings a couple creates a “love motif”: inside jokes, distinctive phrases, rituals, and a shared moral code. These details may look insignificant to outsiders, yet feel sacred to the partners because they express what is uniquely theirs.

That view challenges the idea that compatibility is mainly a matter of finding someone who matches a list of preferred traits or interests. In speed-dating studies, qualities people said they wanted—including attractiveness, humor, and kindness—did not predict whom they felt more attracted to in person. Nor, Finkel says, are people especially more compatible with partners who resemble them. His work with Paul Eastwick has examined compatibility across tens of thousands of couples; the broader implication is that connection is not simply discovered through matching, but can be made through shared experience.

A couple’s private world can also help resolve a tension between commitment and individual authenticity. Finkel says people increasingly feel ashamed of remaining in relationships they regard as inauthentic. But when the relationship becomes part of a person’s identity, honoring the couple can feel like an expression of the self rather than a denial of it. He reads La La Land as a story in which the partners fail to protect their shared world, not as evidence that their love was absent.

Finkel and colleagues tracked couples day by day for weeks. Couples who leaned more into their love motif were happier overall, and each couple reported greater happiness on days when they did so more than on their own less-motif-focused days. The findings were clear in Finkel’s account, though he said the article was still being finalized. The results describe an association; they do not, by themselves, establish that leaning into a motif causes greater happiness.

His practical advice is to notice moments that feel distinctively “us,” then keep them alive by revisiting them and turning them into rituals or inside jokes. Those shared meanings need protection from distraction and drift: couples should actively fight to preserve what makes their relationship feel particular to them. In Finkel’s relationship, “belly full of wine,” a line from a Beatles song, became a private way to tell Allison that he loved or appreciated her. The phrase matters not because it would mean the same thing to anyone else, but because the couple has made it their own.